81222550

素因数分解:

$2^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{4051}}^1$

素因数の和:4464

約数の個数: 24

約数和(自身を含む): 151488072

約数和(自身を除く): 70265522

約数列:

[1, 2, 5, 10, 25, 50, 401, 802, 2005, 4010, 4051, 8102, 10025, 20050, 20255, 40510, 101275, 202550, 1624451, 3248902, 8122255, 16244510, 40611275, 81222550]

約数ペア:

[(1, 81222550), (2, 40611275), (5, 16244510), (10, 8122255), (25, 3248902), (50, 1624451), (401, 202550), (802, 101275), (2005, 40510), (4010, 20255), (4051, 20050), (8102, 10025)]